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1.
Men who fill other mens anal cavities with either their nose or toe
Martin! is such a Butt stuffer, he had his toe up Chris's A-hole
by blisterin badman 37 January 23, 2009
 
2.
An offensive term for a homosexual, generally male. Refers to the act of engaging in anal sex, a.k.a. buttstuffing.
Joe - That buttstuffer keeps touching me! What the hell should I do?

Tommy - Break his cock-sucking face, man.
by FagH8er4LyfeG August 17, 2007